Arbeitszeugnis (Work Reference Letter)
An Arbeitszeugnis is a mandatory written reference document you issue when an employee departs. It confirms employment dates, position, responsibilities, and conduct. Swiss law (ArG Article 315c) requires you to provide one on request, and it must be truthful yet fair—avoiding unnecessarily damaging language.
An Arbeitszeugnis is a formal employment reference letter issued by the employer when an employee's contract ends. It serves as proof of work history and conduct for future job applications. Every Swiss employer must provide one upon request.
The document is legally binding under the Swiss Labour Code (ArG). It protects both parties: the employer documents the employment relationship, and the employee receives official confirmation of their role and performance.
When You Must Issue an Arbeitszeugnis
You must issue an Arbeitszeugnis when an employee leaves, whether they resign, are terminated, or reach the end of a fixed contract. The employee has the right to request it in writing; you have 30 days to provide it.
Some cantons and collective labour agreements (GAV) may impose stricter timelines. Always check your sector's specific rules. Employees often need references immediately for new job applications, so prompt delivery is expected practice.
- Provide within 30 days of employment ending
- Issue even if the employee never explicitly requests it (best practice)
- Include on company letterhead with date and authorized signature
- Must confirm employment dates and final position
- Required regardless of separation reason (resignation, termination, etc.)
- Can be handed to employee or sent to their home address
Your Legal Obligations
Swiss law (ArG Article 315c) requires the Arbeitszeugnis to be truthful and fair. You cannot include misleading or unnecessarily harsh language designed to harm the employee's future prospects. This is sometimes called the duty of proportionality.
The document must be clear enough that a future employer understands the role and performance level. Vague or coded language that sounds positive but signals problems is legally risky and considered bad faith.
- Truth: factual statements only; no false claims
- Fairness: avoid unnecessarily damaging language
- Clarity: describe role, duties, and performance level plainly
- Completeness: confirm employment dates, final title, and departure date
- Proportionality: criticism must match actual conduct
- Privacy: no mention of medical data, union activity, or protected characteristics
The Most Common Mistake
The biggest error is using coded negative language: phrases like 'the employee carried out tasks assigned' or 'we wish them well in future endeavours' signal poor performance to Swiss employers, but are hard to challenge legally because they sound neutral.
Employers sometimes try to punish a difficult departure by writing a minimal or faint-damned reference. This often backfires: the employee can dispute it via labour court (Arbeitsgericht), and you may be forced to rewrite it. Be direct and fair instead.
- Avoid vague or coded language—say what you mean clearly
- Do not use minimal references as retaliation for disputes
- Do not omit key duties or achievements just to weaken the reference
- Consult a lawyer if you fear a dispute; do not guess at legal limits
- Keep a copy for your employment file
- Consider having an HR advisor review it before signing, especially for difficult departures
Frequently asked questions
- Can I refuse to give an Arbeitszeugnis if the employee left on bad terms?
- No. Swiss law requires you to provide one regardless of the departure circumstances. You must issue a truthful, fair reference—but you cannot withhold it as punishment. A disputed Arbeitszeugnis can be challenged in labour court.
- Can I mention disciplinary warnings or conduct issues in the Arbeitszeugnis?
- Yes, if they are true and proportional. Serious misconduct can be noted. However, minor issues or disagreements should generally not appear; focus on job performance and reliability instead. A lawyer can advise on borderline cases.
- What if an employee asks me to change or soften an Arbeitszeugnis after I've issued it?
- You can amend it if the original was factually wrong. If the employee simply disagrees with your assessment, you are not obliged to change it—but if it is disputed, labour courts may intervene. Offer to add a neutral addendum instead if you wish to compromise.
General information for Swiss employers, not legal advice. Have a lawyer confirm anything with legal consequences.